The Youzify WordPress plugin suffers from a stored XSS vulnerability (CWE-79) in the youzify_media shortcode. Because the plugin does not properly sanitize or escape user input in shortcode attributes, authenticated users with contributor or higher privileges can inject arbitrary JavaScript code. This code executes in the context of any user who views the compromised page, potentially leading to session hijacking or other script-based attacks. The vulnerability affects all versions up to 1.3.0. No official patch or fix information is provided in the available data.

An attacker with contributor-level or higher access can inject malicious scripts that execute in the browsers of users who view the injected content. This can lead to theft of user credentials, session tokens, or other sensitive information accessible via the browser context. The vulnerability does not affect availability but impacts confidentiality and integrity. There are no known exploits in the wild as of the published date.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users only and consider disabling or limiting use of the youzify_media shortcode. Monitor for plugin updates from the vendor that address this vulnerability.